Remove to re-add with version information for future reference
This is Npgsql2.0.12.0-bin-ms-net3.5sp1

From http://pgfoundry.org/frs/download.php/3354/Npgsql2.0.12.0-bin-ms.net3.5sp1.zip
This is identical to the version added in ff8a7682, removed and readded to check and record version
Made terrain uploads thread-safe